About Us

We have been one of the most trusted exterior home remodelling companies in the Sudbury area for more than 20 years. We are a family-owned and operated business that values reliability, quality, and affordable pricing.

Homeowners turn to us for their home renovation needs. Whether they need to install a new roof, siding, soffit, fascia, window, or door, they can expect quality products and workmanship from our experienced and trained exterior specialists.

If you want a new, quality window or door, come to us. We are the exclusive dealer for North Star® brand, a premier manufacturer in Canada. The products we carry meet the country’s efficiency and building standards.

The Gainer Windows & Doors Difference

As a well-established company, we have received the Sudbury Star’s Consumer Choice Award for Best Window Dealer. We’re also a member of the Siding and Window Dealers Association of Canada (SAWDAC), an organization that sets stringent standards to make sure that customers receive professional services and quality workmanship.

When it comes to our exterior services, we give our customers the excellent results they deserve. We provide high-quality products at the best possible price.


With more than 25 years of experience, we strive to deliver the best service and value in door, window, siding, and roof installations for homes in Sudbury.

Enhance Your Exterior Today

Complete our contact form to get a free quote. We’ll also provide you with a 25 percent discount when you have your door or window replaced by our team.